How to Make Your ‘iCloud.com’ Email Address the Default for Sending Messages

Chances are, to go along with your nifty new @icloud.com address, you probably have either a @mac.com or @me.com address, or both. Want to simplify things and just use your @icloud.com address as the default for sending email? Here’s how.

In iOS 6:

Go to Settings > iCloud > Account (your Apple ID) > Advanced: Mail.

Under “iCloud Account Information”, then tap your email address.

From the list of available addresses, tap the @icloud.com email address to use as the default address for sending mail.

In OS X Mountain Lion:

Go to Mail Preferences > Composing.

Click the “Send new messages from” list and select the @icloud.com email address.